Oil fragrance diffuser



FIG. 1 is a perspective view of an oil fragrance diffuser showing my new design;

FIG. 2 is a front side elevation view thereof;

FIG. 3 is a rear side elevation view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plain view thereof; and,

FIG. 7 is a bottom plain view thereof.

The features shown in broken lines with consistent dash lengths illustrate ornamentation, features and/or environment that form no part of the claimed design. 

CLAIM The ornamental design for an oil fragrance diffuser, as shown and described. 